rate-limits changedapi/rate-limits
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3232 **[Claude Platform on AWS](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws):** The same monthly spend caps apply, and requests stop at the cap in the same way. Billing and tier increases work differently; see [Spend limits on Claude Platform on AWS](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws#spend-limits).
3333</Note>
3434
35Each of the Start, Build, and Scale tiers carries a monthly spend cap, which is the maximum your organization can spend on the API each calendar month. You can view your organization’s monthly spend cap and set your own limit on the [Billing](https://platform.claude.com/settings/billing) page in the Claude Console.
35Each of the Start, Build, and Scale tiers carries a monthly spend cap. The cap is the maximum your organization can spend on the API each calendar month. You can view your organization’s monthly spend cap and set your own limit under [Spend limits in the Claude Console](https://platform.claude.com/settings/spend-limits) (`platform.claude.com/settings/spend-limits`).
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3737| Usage tier | Monthly spend cap |
3838| ---------- | ----------------- |
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6767You can also set your own spend limit below your tier’s cap to control costs:
6868
6969<Steps>
70 <Step title="Navigate to the Billing page">
71 In the Claude Console, go to the [Billing](https://platform.claude.com/settings/billing) page (`platform.claude.com/settings/billing`).
70 <Step title="Navigate to your spend limits">
71 Go to [Spend limits in the Claude Console](https://platform.claude.com/settings/spend-limits) (`platform.claude.com/settings/spend-limits`).
7272 </Step>
7373
7474 <Step title="Open the spend limit editor">
75 In the **Spend limits** section, click **Adjust limit** (or **Set limit** if no limit is currently set).
75 Next to your organization’s **Monthly spend limit**, click **Adjust limit** or **Set limit**.
7676 </Step>
7777
7878 <Step title="Adjust your spend limit">
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9494
9595### Cache-aware ITPM
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97Many API providers use a combined “tokens per minute” (TPM) limit that might include all tokens, both cached and uncached, input and output. **Claude’s default ITPM rate limits count only uncached input tokens.** This is a key advantage that makes the rate limits effectively higher than they might initially appear.
97**The API’s default ITPM rate limits count only uncached input tokens.** This makes the rate limits effectively higher than they might initially appear.
9898
9999ITPM rate limits are estimated at the beginning of each request, and the estimate is adjusted during the request to reflect the actual number of input tokens used.
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122122
123123OTPM rate limits are evaluated in real time as output tokens are produced, counting only the actual tokens generated. The `max_tokens` parameter does not factor into OTPM rate limit calculations, so there is no rate limit downside to setting a higher `max_tokens` value.
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125Each row in the following tables has its own RPM, ITPM, and OTPM limits. Some rows cover several models that share one limit; see the notes under the tables. You can check your current rate limits and behavior on the [Rate limits](https://platform.claude.com/usage/limits) page in the Claude Console, or read the configured limits and set workspace limits programmatically with the [Rate Limits API](https://platform.claude.com/docs/en/manage-claude/rate-limits-api).
125Each row in the following tables has its own RPM, ITPM, and OTPM limits. Some rows cover several models that share one limit; see the notes that follow the tables. You can check your current rate limits and behavior on the [Rate limits](https://platform.claude.com/usage/limits) page in the Claude Console, or read the configured limits and set workspace limits programmatically with the [Rate Limits API](https://platform.claude.com/docs/en/manage-claude/rate-limits-api).
126126
127127<Note>
128128 Rate limits are shared across all `inference_geo` values. Requests with `inference_geo: "us"` and `inference_geo: "global"` draw from the same rate limit pool.
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228228
229229### Fast mode rate limits
230230
231When you use [fast mode](https://platform.claude.com/docs/en/build-with-claude/fast-mode) with `speed: "fast"` on Claude Fable 5.2, Claude Mythos 5.2, Claude Opus 5.5, Claude Opus 5, or Claude Opus 4.8, dedicated rate limits apply. They are separate from standard rate limits. Claude Opus 5.5 has a default fast mode rate limit in the Start, Build, and Scale tiers, so you don’t need to request access to use fast mode with it. Organizations in the Evaluation tier can use fast mode with Claude Opus 5.5 once they move to the Start, Build, or Scale tier. The same applies to Claude Fable 5.2. It also applies to Claude Mythos 5.2. Fast mode for Claude Opus 5 and Claude Opus 4.8 is in research preview. To see your fast mode rate limits, go to the [Rate limits](https://platform.claude.com/usage/limits) page in the Claude Console. When you exceed your fast mode rate limits, the API returns a `429` error with a `retry-after` header.
231When you use [fast mode](https://platform.claude.com/docs/en/build-with-claude/fast-mode) with `speed: "fast"`, dedicated rate limits apply, separate from standard rate limits. They apply on Claude Fable 5.2, Claude Mythos 5.2, Claude Opus 5.5, Claude Opus 5, and Claude Opus 4.8. Fast mode is in research preview for Claude Opus 5 and deprecated for Claude Opus 4.8.
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233Claude Fable 5.2, Claude Mythos 5.2, and Claude Opus 5.5 have a default fast mode rate limit. The default limit applies in the Start, Build, and Scale tiers. You don’t need to request fast mode access for these models. Organizations in the Evaluation tier can use fast mode with these models once they move to the Start, Build, or Scale tier.
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235To see your fast mode rate limits, go to the [Rate limits](https://platform.claude.com/usage/limits) page in the Claude Console. When you exceed your fast mode rate limits, the API returns a `429` error with a `retry-after` header.
232236
233237The response includes `anthropic-fast-*` headers that indicate your fast mode rate limit status. See [Fast mode rate limits](https://platform.claude.com/docs/en/build-with-claude/fast-mode#rate-limits) for details on these headers.
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